Clearly enjoying herself, Nicole Richie spent time with friends at Las Ventanas al Paraiso Resort in Cabo San Lucas, Mexico on Sunday (September 2). The socialite was in town for the wedding of celebrity publicist Meredith O'Sullivan.

Wearing a yellow and brown bikini and a Panama hat, the fashion designer laughed with pals on her hotel balcony before piling into a golf cart to cruise around the resort.